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How can I figure out the key of a piece?

When we discuss KEYS in music we must always look at one thing: the KEY signature. This is the bit on the first line, next to the clef (Treble, Bass, Alto or Soprano). You'll notice this as it will have S...

Answered by Shaun C. • Music tutor

3639 Views

Let y = 4t/(t^2 + 5). Find dy/dt, writing your answer in it's simplest form, and find all values of t for which dy/dt = 0

We use the quotient rule to find dy/dt. Let u = 4t and v = (t^2 + 5). Then, u' = 4 and v' = 2t. Hence,

dy/dt = u'v - v'u / v²= 4(t^2 + 5) - 4t x 2t / (t^2 + 5)²= 20 - 4t

Answered by Jonathan H. • Maths tutor

4109 Views

How much did Bismarck’s success in unifying Germany by 1871 depend on the weaknesses of his opponents?

This is a typical 'how far' (or in this case, how much) question that is asking you to weigh up the relative importance of one factor (the weaknesses of Bismarck's opponents) against that of other factors...

Answered by Will S. • History tutor

10327 Views

Why do I sometimes see the しき attached to adjectives?

しき is an adjective ending that appears occasionally in modern Japanese texts and literature. However this is a remnant of classical (medieval) Japanese language. This ending carries the s...

Answered by Emily M. • Japanese tutor

2637 Views

Discuss the reasons for and consequences of separatism with one example. (5)

Separatism is usually a feeling of isolation associated with a certaing roup of people or the region that they live it. Feelings of separatism can arise because the region feels economically depressed by ...

Answered by Eleanor A. • Geography tutor

3027 Views